| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.util; |
| |
| import org.jetbrains.annotations.NonNls; |
| |
| |
| /** |
| * @author kir |
| */ |
| public abstract class WaitFor { |
| private static final int DEFAULT_STEP = 10; |
| private static final int MAX_TIMEOUT = 60 * 1000; |
| |
| private long myWaitTime; |
| private boolean myInterrupted; |
| private volatile boolean myConditionRealized; |
| @NonNls public static final String WAIT_FOR_THREAD_NAME = "WaitFor thread"; |
| |
| /** Blocking call */ |
| public WaitFor() { |
| this(MAX_TIMEOUT); |
| } |
| |
| public WaitFor(int timeoutMsecs) { |
| this(timeoutMsecs, DEFAULT_STEP); |
| } |
| |
| /** Blocking call */ |
| public WaitFor(int timeoutMsecs, final int step) { |
| long started = System.currentTimeMillis(); |
| long deadline = timeoutMsecs == -1 ? Long.MAX_VALUE : started + timeoutMsecs; |
| |
| myConditionRealized = false; |
| try { |
| while(!(myConditionRealized = condition()) && System.currentTimeMillis() < deadline) { |
| Thread.sleep(step); |
| } |
| } catch (InterruptedException e) { |
| myInterrupted = true; |
| } |
| myWaitTime = System.currentTimeMillis() - started; |
| } |
| |
| /** Non-blocking call */ |
| public WaitFor(final int timeoutMsecs, final Runnable toRunOnTrue) { |
| new Thread(WAIT_FOR_THREAD_NAME) { |
| @Override |
| public void run() { |
| myConditionRealized = new WaitFor(timeoutMsecs) { |
| @Override |
| protected boolean condition() { |
| return WaitFor.this.condition(); |
| } |
| }.isConditionRealized(); |
| |
| if (myConditionRealized) { |
| toRunOnTrue.run(); |
| } } |
| }.start(); |
| } |
| |
| public long getWaitedTime() { |
| return myWaitTime; |
| } |
| |
| public boolean isConditionRealized() { |
| return myConditionRealized; |
| } |
| |
| public boolean isInterrupted() { |
| return myInterrupted; |
| } |
| |
| protected abstract boolean condition(); |
| |
| public void assertCompleted() { |
| assertCompleted(""); |
| } |
| public void assertCompleted(String message) { |
| assert condition(): message; |
| } |
| } |